Sommerstein, A.H.. "13. The informal oath". Oaths and Swearing in Ancient Greece, Berlin, Boston: De Gruyter, 2014, pp. 315-347. https://doi.org/10.1515/9783110227369.315
Sommerstein, A. (2014). 13. The informal oath. In Oaths and Swearing in Ancient Greece (pp. 315-347). Berlin, Boston: De Gruyter. https://doi.org/10.1515/9783110227369.315
Sommerstein, A. 2014. 13. The informal oath. Oaths and Swearing in Ancient Greece. Berlin, Boston: De Gruyter, pp. 315-347. https://doi.org/10.1515/9783110227369.315
Sommerstein, A.H.. "13. The informal oath" In Oaths and Swearing in Ancient Greece, 315-347. Berlin, Boston: De Gruyter, 2014. https://doi.org/10.1515/9783110227369.315
Sommerstein A. 13. The informal oath. In: Oaths and Swearing in Ancient Greece. Berlin, Boston: De Gruyter; 2014. p.315-347. https://doi.org/10.1515/9783110227369.315